Materials handling apparatus



Feb. 4, 1958 D. A. DUNCAN 2,822,099

MATERIALS HANDLING APPARATUS Filed Aug. 26, 1954 -.5 Sheets-Sheet l T 12H a 46 45 12 l' 12 N six i mum - Indian 2b? Om- A2. Q. Quzzcazz D. A.DUNCAN MATERIALS HANDLING APPARATUS Feb. 4, 1958 5 Sheets-Sheet 2 FiledAug. 26, 1954 Ina/6222 5? k2 Q. 001200.12 %W Dual Feb. 4, 1958 DUNCAN2,822,039 X MATERIALS HANDLING APPARATUS Filed Aug. 26, 1954 5Sheets-Sheet 3 at? .5. OT

Swag/Q2 anlwncaz-a MGM WHVJA D. A. DUNCAN MATERIALS HANDLING APPARATUSFeb. 4, 1958 5 Sheets-Sheet 4 Filed Aug. 26, 1954 J12 Jere/Z 01 5' 222Q- 00.12 CCLIZ CLAMGEQW Aidan 21 04,,

Feb. 4, 1958 D. A. DUNCAN 2,822,099

MATERIALS HANDLING APPARATUS Filed Aug. 26, 1954 5 Sheets-Sheet'5 I112/612 502- Daddy/Z2 a. Duncan Unite States Patent F MATERIALS HANDLING APPARATUS Dwight Arthur Duncan, Evanston, Ill., assignor to AppletonElectric Company, Chicago, 11]., a corporation of Illinois ApplicationAugust 26, 1954, Serial N 0. 452,278

Claims. (Cl. 214-317) This invention relates in general to materialshandling apparatus and in particular to the dumping of materials fromcontainers or hoppers. While not limited to a particular application,the invention finds especially advantageous use in connection with thewell-known industrial or fork lift truck, permitting convenient dumpingof loads from elevated positions.

It is the general aim of the invention to provide apparatus whichpermits normal handling of material in containers or hoppers-e. g.,raising, transporting and lowering by means of industrial lift trucksyetwhich makes possible the dumping of materials by tilting of the hopperwithout first specially anchoring the latter on a support.

A more specific object of the invention is the provision of means forlocking a hopper to an invertible support as an'incident to rocking ofthe latter from its normally horizontal position.

It is another object of the invention to provide such apparatus fordumping materials from a hopper which is readily attachable to aconventional fork lift truck.

Further objects of the invention are to provide such apparatus which issimple and inexpensive in construction; which effects dumping of ahopper by tilting of the latter in a forward direction from the forktruck, permitting the latter to be driven directly up to the receivingbin or receptacle; which achieves complete dumping by causing the hopperto be tilted through an angle greater than 90 to a substantiallyup-side-down position; which utilizes the weight of the hopper and loadto cause tilting of the same for dumping, thereby obviating the need forpower means; and which requires only a simple operation, such as a pullon a chain, on the part of a workman, to initiate dumping.

Other objects and advantages will become apparent as the followingdescription proceeds, taken in conjunction with the accompanyingdrawings, in which:

Figure 1 is a'perspective view of materials handling apparatus embodyingthe subject invention and shown in elevated position on a fork lifttruck prior to dumping of a load;

Fig. 2 is similar to Fig. 1, showing "the dumping operation in process;

Fig. 3 is a perspective view, taken from below, of a preferredform ofhopper utilized in the subject materials handling apparatus;

Fig. 4 is a perspective view of the apparatus, with the hopper omitted,and .shown in lowered-position on a fork lift truck;

Fig. 5 is a. perspective view of the apparatus taken from below as it isheld in raised position on a fork lift truck;

I Fig. 6 is a detail view, partially in section, illustratingself-engaging releasable latch means; and

Figs. 7, 8, and 9 are fragmentary-detail views, partially in section,illustrating a supporting platform in its latched, horizontal, initiallyreleased, and tilted dumping positions, respectively, and furthershowing the corresponding positions of novel locking means.

r 2,822,099 C Patented Feb. 4, 1958 Whilethe invention has been shown"and is described in some detail with reference to a particularembodiment thereof, there is no intention that it be limited to suchdetail. On the contrary, the intention here is to cover all alterations,modifications, and equivalents falling within the spirit and scope ofthe invention as defined by the appended claims.

Referring now to the drawings, Figs. 1 and 2 depict an exemplary dumpingattachment 10 and hopper 11,- constructed and cooperating in accordancewith the provisions of the present invention. Such materials handlingapparatus is shown in connection with a fork lift truck 12, the latterholding the loaded hopper 11 inraised upright position (Fig. 1), or in aforwardly tilted position to discharge the hopper contents into anelevated gravityfeed receiving bin 14 (Fig. 2).

The fork lift truck 12 may take any one of a variety of commerciallyavailable and well known forms. That shown in the present case is of thebattery-powered, straddle fork type, having an operators cab 12a mountedon wheels 12b and located behind a vertical standard 120. Apower-operated elevator carriage 12d rides up and down along thestandard under the control of the operator and normally carriesforwardly extending forks- (not shown) which, when lowered, nest betweenstabilizing feet 12c. As best seen in Fig. 4 the carriage 12d is formedas a generally rectangular, reinforced frame carrying a crossbar 12finsertable though alined apertures near the upper ends of the verticalmembers 12g. L- shaped forks (not shown) are normally pivotally receivedat the upper ends of the bar 12 the lowerends of their vertical portionsabutting a lower carriage plate 12h.

The speed and maneuverability .of such fork lift trucks have broughtthem into wide industrial use for lifting pallets, boxes and hoppersfrom any level, transporting the same to a desired location, and thenlowering such' containers into the desired position of rest.

The damper attachment lil is intended to cooperate with any one of anumber of hoppers 11, permitting the same to be successively and rapidlypicked up by the truck 12, transported to a dumping location such as.the bin 14, emptied, and then returned .to a storage or refilling area.The preferred form of hopper for facilitating this operation is bestillustrated in Fig. 3 and comprises a main bodyztl forming the materialsholding receptacleand set on legs 21 which hold the body in elevatedrelation from a support surface such as the floor or ground. Thispermits entry of ordinary forks or the attachment .10, as will bedescribed, between :the underside of the hopper 11 and that surface uponwhich the hopper is resting. Subsequent elevation of the carriage thusraises the hopper for transport. Various structural forms and materialsmay be used for the body 20 and legs 21 according to the nature of thematerial to be handled; 'in the present case the body is of .heavygaugesheet metal which is corrugatedfor greater rigidity, ,and the legs 2 arein the form of rectangular steel frames suitably welded along theshorter sides of the body. For cooperating with the attachment 10 inamanner to be explained, :the under side of the hopper is provided with aplurality of spaced, parallel transverse ribs 22. Such ribs areordinarily formed in the bottom of sheet metal hoppersforqthe purpose ofadded str-ength, and'it will be understood that theymay also be formedonthe under sides of wooden-hoppers by nailing a suitable number of woodenstripsin place.

in accordance with one;feature. of the invention which permits the.hopper to be turned substantially upside down, .means beneath theunderside of the hopper-are provided-for :definingspaced channelsadapted to accommodate horizontal entry of a part of the attachment 10.In the present case, horizontal channels 24 extending at right angles tothe ribs 22 are created by the welding or other suitable attachment ofinwardly extending plates or flanges along the inner sides of therespective legs 21.

Referring next more particularly to Figs. 49, the dumper attachment 10comprises a pair of support members 26 which are adapted to be attachedto the fork truck carriage 12a! in lieu of the regular forks and whichthen present forwardly extending horizontal arms. As here shown, thesupport members 26 have vertical arms 26a which are adapted at theirupper ends to be received on the cross bar 12;, their lower endsabutting the carriage plate 12h. Horizontal arms 26b then extendforwardly from the carriage in a manner similar to conventional forks.For entry into the channels 24 beneath the hoppers 11, and for liftingengagement with the under sides of such hoppers, a suitable platform 28,for example, a heavy metal plate, is carried in pivoted relation by theforward ends of the arms to rock between a substantially horizontalposition (Fig. 7) and a forwardly tilted position (Fig. 8). As shownbest in Fig. 5, a stationary rod 29 is inserted through and fixed inalined passages formed in the forward ends of the arms 26b, and suitablylocated lugs 30, welded or otherwise fixed to the bottom surface of theplatform 28 are journaled on this rod. It may be observed at this pointthat the lugs 30 are located slightly rearwardly of the center of theplatform 28 so that the latter, and any hopper carried thereby, willtend to tilt forwardly under the influence of its own weight, about therod 29.

In order to retain the platform 28 in horizontal position, snap actingreleasable latch means (Fig. 6) are mounted on the vertical arms 26a andadapted to engage the upper edge of an upturned stop plate 28a at therear of the platform 28. The stop plate 28a also limits the extent ofthe platforms entry beneath the hopper 11. While such latch means maytake a variety of forms, they are here illustrated as comprising bolts32 slidable in channels 34 which are welded to the vertical arms 26a. inthe bottom of each channel 34, an elongated slot 34a is formed to permitthe passage of actuating levers 35 into recesses 32a defined in thebottom of each bolt 32. The levers 35 are fast on a cross shaft 36 whichrotationally extends through the arms 26a. Rocking of the shaft 36 andthe arms 35 counter-clockwise, therefore, retracts the bolts 32 andpermits the platform 28 to tilt forwardly under its own weight. Foreffecting such retraction of the bolts 32, one end 36a of the rod 36 isturned upwardly and connected with suitable actuating means such as apull chain 38. The operator thus need only pull on the chain 38 toretract the bolts 32 against the force of a biasing spring 39 connectedbetween the shaft extension 36a and the carriage 12d. This spring tendsto rock the shaft 36 in a clockwise direction and to thus hold the latchbolts 32 in their forwardly projecting, locking positions. Additionally,the forward ends of the bolts 32 are provided with inclined cammingsurfaces 3212 which are struck by the lower rear corner of platform 28as it is returned to its horizontal position so that the bolts areshifted rearwardly and then automatically snapped into lockingengagement with the upper edge of the flange 28a.

In keeping with another important feature of the invention, means areprovided for automatically engaging the hopper 11 and locking it on theplatform 28 as an incident to forward tilting of the latter. Such meansare totally out of the way when 'the platform 28 is latched in itshorizontal position, thus permitting the platform to serve in the usualfashion of conventional forks for ordinary lifting and transportingoperations. In the presently illustrated form, such locking meanscomprise at least one locking element 40 (although two are employed inthe present case for greater l'fili iaposed beneath the platform 28 andpivoted thereto. As illustrated in Fig. 5, the locking elements 40 arefixed on a shaft 41 which is journaled in a series of apertured lugs 42welded or otherwise fixed to the underside of the platform 28. Thelocking elements are turned upwardly at their forward ends to createfingers 40a which are insertable through and retractable from suitablylocated apertures 44 defined in the platform 28. It will be observedthat the shaft 41 which mounts the locking elements 40 is locatedrearwardly of the apertures 44 but forwardly of the rod 29 whichpivo-tally carries the platform 28.

Means are provided for controlling the positions of the locking elements46 relative to the platform 28 so that the fingers 40a are insertedthrough the apertures 44 and into locking engagement with the hopperribs 22 as an incident to tilting of the platform 28. Yet such meansalso assure that the fingers 46:: are retracted from the apertures 44when the platform is horizontal. This function is here accomplished bystationary cams 45 fixed on the rod 29 and engaged by the rear ends ofthe locking elements 40 which extend rearwardly from the shaft 41.

In the preferred form, the cams 45 are made as elongated members withtheir rearward ends smoothly rounded for sliding engagement with thelocking elements 49. These cams are rigidly fixed in a generallyhorizontal position and in rearwardly extending relation to the rod 29.For causing the locking fingers 40a to extend considerably through theapertures 44 just as soon as the platform 28 tilts only a slight amount,the cams are notched on their undersides to thus leave depending,rounded lugs 45a. The upper surfaces of the rear ends of the lockingelements 40 are cooperatively formed with rounded projections 4011 whichnest in the cam notches when the platform is horizontal (Fig. 7), butwhich ride over the lugs 45a as the platform begins to tilt (Fig. 8).

When the platform is in its horizontal position (Fig. 7), it layssubstantially parallel to the longer dimensions of the cams 45, therebypermitting the cooperating rear ends of the locking elements 40 to swingup close to the platform since the latter are forwardly overbalancedwith respect to the shaft 41. Thus, the elements 40 lie substantiallyparallel to the platform with the projections 40b nested in the earns45, and the fingers 46a are retracted from the apertures 44. However, asthe platform begins to tilt forwardly about the rod 29, the cams 45remain stationary and the locking elements 4% are shifted rearwardlywith respect to the cams. Thus, the projections 40b are immediatelycammed over the lugs 45:; (Fig. 8) so that the rear ends of the lockingelements 40 are pushed outwardly with respect to the platform. Thisrocks the locking elements 40 on the shaft 41, causing the fingers 40ato extend through the apertures 44 (Fig. 8) and into locking engagementwith the ribs 22 of any hopper 11 which happens to be supported on theplatform. The lugs 45a and projections 49b therefore assure that thefingers 4011 are adequately extended to lock a hopper in place eventhough the platform is only slightly tilted. No sliding of the hopper onthe platform can occur.

As the platform continues to swing downwardly to its dumping position(Fig. 9), the stationary cams 45 become more nearly disposed at rightangles to the platform. The rear ends of the locking elements thus bearagainst the cams and are held outwardly from the platform. The fingers40a are, as a result, held in projected relation through the apertures44 and in locking relation with the ribs 22 of a hopper on the platform.Because the projections 40b clear the rear ends of the earns 45, and theflat surfaces of the elements 40 bear against the cams, there is notendency to push the fingers 40a farther than necessary through theapertures 44.

When the latching bolts 32 are retracted, therefore, the platform 28 andhopper 11 thereon automatically tilt forwardly since a major portion oftheir weight is disposed zgsazgass forwardly of the rod 29-; Suchtilting is limited, how-' ever, by' engagement of the fingers 40a withthe edgesof the apertures 44 (Figs. 2 and 9), whereby the hopper is notturned completely upside down. tilted through more than 90 degrees toasubstantially upside-down position such that material is dumped throughthe upper opening of the hopper body 20. Thereis nonecessity for atrapdoor or swinging gate, with attendantlatchingmeans, on the hopperbody. It will be observed that the fingers 40a lock thehopper againstsliding forwardly relative to the platform. But when the latter isrocked through more than 99 degrees from itshorizontal position, theflanges 25, which define the channels 24' for receiving the platformbear against the under side of the latter and prevent dropping of thehopper.

It is believed that the operation of the illustrative materials handlingapparatus will be clear from the foregoing description. However, bywayof recapitulation, it may be stated that with the platform- 23 held inits horizontal position by the latch bolts- 32, it may be horizontallyin serted and retracted from the under side of the hoppers 11,preferably into and from the channels 24'formed by the flanges 25 andthe bottom: of the body 11. With the platform so inserted beneath thehopper 11, the latter may be raised on the fork truck 12 and transportedin the usual conventional manner. Thus, in certain applications where adumping operation isnot required, the full utility of the. fork truckand hoppers are'retained. Additionally,- however, when a loaded hopper 1is to be dumped into an elevated receivingreceptacle,.such as the bin14-, it isonly necessary for the operator to drive the truck 12: di-

rectly up to the bin 14, and pull on the chain 38 to thereby apertures44 and into locking. engagement with the ribs 22 of the hopper. Thefingers a thus automatically lock the hopper against forward slidingmovement as the platform 28 tilts. Complete dumping of materials in thehopper is assured since it is tilted through more than 90 degrees to asubstantially upside downposition Fig. 2).-

In this-position, the flanges 25 bear against the under side of theplatform 28 and prevent dropping of the hopper.

In order to'return the platform 28*and the emptied hopper 11 to theiroriginal positions, the operator simply causes lowering of the elevatorcarriage 12d so that the hopper strikes guard strips 48 (Figs. 1 and 2)placed on the receiving bin 14. Further lowering, and slight forwardmovement of the truck 12 if necessary, rocks the platform-28 rearwardlyuntil its aft" edge cams past the latch bolts 32 and the latter snapinto holding engagement with the stop flange 28a.

The empty hopper may then be transported to any desired point,discharged from, the platform 28 in the usual manner, and another hopperpicked up.

Numerous advantages accrue from the use of the novel attachment and"hopper of the present invention, especially as compared toprior dumpingattachments of the type which require power means and which rotate ahopper about an axis running fore and} aft of the fork truck. In thepresent case,- no' power drive to the dumper attachment isrequired,and-it adds weight in the order of only 100 pounds to the elevatingcarriage, as contrasted with 300 to 400 pounds for the prior devices.Since the present attachment tilts forwardly of the fork truck, asopposed to si'dewise in the'prior devices, the truck may be drivenforwardly right up to the receiving bin. In tight quarters, this isimportant. Moreover, it permits the hop-per to extend completely overthe receiving bin, so that if the hopper should, by some chance, fall,it drops into the bin rather than onto the floor where it might injure aworkman.

Nevertheless, it is having transverse ribs on its underside, legs forsupport ing the hopper in elevatedposition, andmeans spaced below theunderside of the hopper to define spacedhorizontal channels; with anattachment for the fork lift; truck including at least one L-sha'pedmember adapted-'- for connection to the truck in lieu of itsfo'rksys'aid' l;- shaped member having a horizontal portion, a platform,means pivotally connecting the said platform to the'horizontal portionof said L-shape'd member to'afiond-swing ing movement of the platformbetween horizontal ahld" forwardly tilted positions, said platformbeinginsertable into said channels beneath said hopper, there being at leastone aperture defined in said platform, and means-- automaticallyprojected upwardly through saidapertu reinto locking engagement with oneof said ribs on said hopper as an incident to forward-tilting of'said-platf'orm' relative to said L-shaped support member.

of loads from an elevated position ona fork lifttruck, said apparatuscomprising, in combination, an attachment for the truck including a pairof L-shaped members adapted for connection to the truck in lieu ofitsforks and presenting forwardly extending horizontal arms, aplate-likeplatform, means pivotally connecting said'platform to'sai d arms forswinging movement between hor-' izo-ntal and forwardly tilted positions,releasable latch means for retaining said platform in its-horizontalposition, there being a plurality of apertures defined insaid platform,a corresponding pluralityof locking fingers pivotally mounted beneathsaid platform, cam means mounted in fixed relation to said horizontalarms and engaged by said fingers'for automatically extending and?retracting said fingers through said apertures when said platform is' inits tilted and horizontalpositions, respeo' tively; and a hopper havingtransverse ribs on its underside, and means spaced beneath the undersideof the hopper to define spaced horizontal channels running at rightangles to said ribs; whereby said hopper may be lifted and transportedby inserting said platform into said channels, and said fingersautomaticallyengagesaid ribs to lock said hopper on said platform whensaid-latch means are released to dump the hopper forwardly;

3; Materials handling apparatus for affording dumping of a hopper havingribs on its underside, said apparatus comprising, in combination, atleast one sup ort? member adapted for connection to a raising andlowering mechanism and presenting a horizontally extending arm, aplatform, means pivotally connecting said plat form in overlyingrelation to said arm for swinging movement between horizontal and tiltedpositions, said platform when in its horizontal position beinginsertable-be neath the hopper to elevate the same, there being at leastone aperture defined in saidp'latform, and means beneath said platformretracted from'saidaperture when the--p lat--- form is horizontal andextenrled through said aperture into locking relation with the hopperribs as anincid'en't" to tilting of the platform, whereby the hopper islocked to the platform when the latter is'tilted'to dumpthe former:

4; In materialshandling apparatus, the combination of a hopper'havingspaced parallel rib'son its bottom and means spaced beneath its bottomdefiningtherewitha channel running at right angles to said ribs; ofmeans for supporting and dumping said hopper comprising a platform, astationary cam, means pivotally supporting said platform for rockingmovement relative to said cam and between substantially horizontal andtilted positions, said platform being adapted when horizontal for entryinto said hopper channel, and a locking element mounted on said platformfor bodily movement therewith and for relative movement thereto betweenprojected and retracte'd positions, said locking element being locatedto cooperativelyengage said cam so that it is shifted by the latter fromits retracted to its projected position as an incident to tiltingmovement of said platform relative to said cam. g

5. Materials handling apparatus for affording dumping of a hopper havingribs on its underside from an elevated position on a fork lift truck,said apparatus comprising, in combination, a pair of support membersadapted for connection to the truck in lieu of its forks and presentinghorizontally extending arms, a platform, means pivotally connecting saidplatforms in overlying relation to said arms for swinging movementbetween horizontal and downwardly tilted positions, there being aplurality of apertures :defined in said platform, a correspondingplurality of locking fingers beneath said platform and insertablethrough and retractable from said apertures, cam means mounted in fixedrelation to said arms and operative on said fingers for holding thelatter in retracted position when said platform is horizontal and forextending said fingers through said apertures as an incident to tiltingof the platform, whereby said fingers engage the ribs of the hopper toretain the latter as the platform is tilted to effect dumping of thehopper contents.

6. Materials handling apparatus for affording dumping of a hopper havingribs on its underside from an elevated position on a fork lift truck,said apparatus comprising, in combination, a pair of L-shaped supportmembers adapted for connection to the truck in lieu of its forks andpresenting forwardly extending horizontal arms, a rod fixed between theforward ends of said arms, a platform pivotally mounted on said rod forrocking movement between a horizontal position and a forwardly,downwardly tilted position, there being a pair of apertures defined insaid platform, a pair of locking elements pivotally mounted to theunderside of said platform at a point forward of said rod and rearwardof said apertures, said elements having upturned fingers at theirforward ends located for projection through and retraction from saidapertures as the elements rock relative to said plate, and a pair ofcams fixed on said rod and engaged with the rearward ends of saidlocking elements to rock the latter relative to said platform as itpivots on said rod and to thereby cause projection of said fingersthrough said apertures as an incident to forward tilting of theplatform.

7. Materials handling apparatus for affording dumping of a hopper havingribs on its underside from an elevated position on a fork lift truck,said apparatus comprising, in combination, a pair of L-shaped supportmembers adapted for connection to the truck in lieu of its forks andpresenting forwardly extending horizontal arms, a rod fixed between theforward ends of said arms, a platform pivotally mounted on said rod forrocking movement between a horizontal position and a forwardly,downwardly tilted position, there being a pair of apertures defined insaid platform, a pair of locking elements pivotally mounted to theunderside of said platform at a point forward of said rod and rearwardof said apertures, said elements having upturned fingers at theirforward ends located for projection through and retraction from saidapertures as the elements rock relative to said plate, and a pair ofcams fixed on said rod and engaged with the rearward ends of saidlocking elements, said cams extending horizontally from said rod andhaving depending lugs at their rear ends, said locking elements surfaceof said platform and means for extending .said fingers upwardly throughsaid platform as incident to.

tilting of the latter, and a hopper which includes a body, a pluralityof parallel ribs on the underside of said body. legs for supporting saidbody in elevated position above the ground or floor, a pair ofplate-like members fixed in spaced relation to the underside of saidbody to define therewith spaced horizontal channels running transverselyto said ribs and opening inwardly towand one another,

said channels being adapted to receive the opposite side edges of saidplatform, whereby the locking fingers may engage said ribs to preventsliding of the hopper relative to the plate, and said plate-like memberssupport the hopper when the platform is turned substantially upsidedown.

9. In materials handling apparatus, the combination of an aperturedplatform, means pivotally supporting said platform for rocking movementbetween substantially horizontal and tilted positions, a locking elementpivotally mounted on the underside of said platform and adapted to haveone end portion projected through said platform, a stationary camdisposed beneath said platform in position to be engaged by said lockingelement, said cam being notched to provide a depending lug, and aprojection on the other end of said locking element nested in said camwhen the platform is horizontal to afford retraction of said one endportion, said other end portion 0 fsaid locking element riding over saidcam to thereby rock the locking element relative to the platform andproject the one end portion through the platform as incident to tiltingof the latter.

10. In materials handling apparatus for supporting and dumping a hopper,the combination of a platform having an aperture therein, a stationarycam, means pivotal-1y supporting said platform for rocking movementrelative to said cam and between substantially horizontal and tiltedpositions, and a locking element mounted on said platform for bodilymovement therewith and relative movement with respect thereto, saidlocking element having means cooperatively engaged with said cam andshifted thereby for moving the element between (a) a position projectingthrough said aperture into locking engagement with the underside of ahopper supported on said plat form and (b) a position retracted fromsaid aperture in response to said rocking movement of said platformbetween (a) tilted and (b) horizontal positions, respectively.

References Cited in the file of this patent UNITED STATES PATENTS649,960 Shotwell May 22, 1900 1,091,826 Frye Mar. 31, 1914 1,430,655Irrgang Oct. 3, 1922 1,628,389 Cochran May 10, 1927 2,613,836 Newhalllet a1. Oct. 14, 1952 2,705,571 Streb et a1 Apr. 5, 1955

